A West Texas man has pleaded guilty in the death of his 18-year-old stepdaughter who authorities say was repeatedly subjected to sexual abuse before she was fatally stabbed and her uterus was cut from her body.

A West Texas man has pleaded guilty in the death of his 18-year-old stepdaughter who authorities say was repeatedly subjected to sexual abuse before she was fatally stabbed and her uterus was cut from her body.